Meaning of CLASS ECHINOIDEA

WordNet Dictionary
	Definition:		[n]  sea urchins and sand dollars
	Websites:
	Synonyms:		Echinoidea
	See Also:		class, Echinodermata, Exocycloida, order Exocycloida, order Spatangoida, phylum Echinodermata, sea urchin, Spatangoida